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How Do Spin Dryers Work?

Views: 0     Author: Site Editor     Publish Time: 2026-01-31      Origin: Site

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How Do Spin Dryers Work?

The spin dryer, also known as a centrifugal dehydrating and deoiling machine, removes surface moisture or oil from processed items through high-speed centrifugal rotation. It efficiently separates water and oil from materials, collects the discharged liquids, and ensures the treated products maintain good appearance, taste, and storability. This machine is a labor-saving essential for food processing facilities, catering businesses, and workshops that handle fruits, vegetables, fried snacks, and medicinal materials.


Key Takeaways

  • The spin dryer adopts centrifugal force principle to achieve dual functions of dehydration and deoiling, with wide applicability to various food and medicinal materials.

  • Core components include a 2.2KW dehydration motor, 0.55KW dual-reducer lifting motor, 304 stainless steel inner and outer buckets, and a frequency conversion speed control system.

  • It features adjustable dehydration speed (0–600r/min), food-grade stainless steel construction, and a stable stainless steel frame, ensuring efficient and safe operation.

  • The machine can replace manual labor with dozens of times higher efficiency, and the treated products are not easy to break, facilitating subsequent packaging and processing.


Workflow of the Spin Dryer: A Step-by-Step Breakdown

From material loading to dehydration completion, the spin dryer follows a streamlined automated process to ensure high efficiency and consistent processing results.


1. Material Preparation and Machine Setup

First, prepare the materials to be processed, such as cleaned vegetables, pickled products, or fried snacks, and ensure there is no excessive large debris. Then:
  • Set the appropriate dehydration speed via the frequency conversion control panel according to the material type (e.g., low speed for fragile fried potato chips, high speed for sturdy kelp).

  • Adjust the lifting system to the proper height to facilitate material loading and unloading.

  • Check the inner bucket for cleanliness and ensure the outer bucket is in good condition to prevent liquid leakage during operation.


2. Material Loading and Sealing

Place the pre-treated materials into the 304 stainless steel inner bucket (750mm in diameter and 410mm in height). Ensure the materials are evenly distributed to avoid unbalanced rotation during operation. Then close and seal the bucket cover tightly to prevent materials from being thrown out during high-speed rotation.


3. Centrifugal Dehydration/Deoiling

Start the dehydration motor; the inner bucket will rotate at the preset speed (0–600r/min). Under the action of strong centrifugal force, the surface moisture or oil of the materials will be thrown out of the inner bucket and collected in the outer bucket (920mm in diameter and 510mm in height). Key features of this step:
  • Uniform Force: Even rotation speed ensures all materials are subject to consistent centrifugal force, achieving uniform dehydration/deoiling effect.

  • Dual-function Processing: It can handle both dehydration of fresh and pickled foods and deoiling of fried snacks, meeting diverse processing needs.

  • Stable Operation: The machine is equipped with a counterweight and a sturdy stainless steel square tube frame (50502mm), which effectively reduces vibration during high-speed rotation.


4. Discharge and Material Collection

After the preset processing time is up, the machine will automatically stop rotating. Activate the lifting motor to lift the inner bucket to a convenient height, then open the cover and take out the processed materials. The collected liquid in the outer bucket can be discharged and recycled uniformly. The machine can support continuous batch processing, greatly improving production efficiency.


Key Factors for Achieving Optimal Dehydration/Deoiling Results


To obtain ideal processing effects and avoid common operational problems, focus on the following critical factors:


Material Loading Amount and Uniformity

  • Overloading: Excessive material loading will reduce the centrifugal effect and cause uneven dehydration/deoiling, and may even damage the motor due to excessive load.

  • Unbalanced Loading: Uneven distribution of materials in the inner bucket will lead to violent vibration of the machine during operation, affecting the service life of the equipment. Ensure the materials are spread evenly in the bucket.


Rotation Speed Adjustment

  • Fragile Materials: For easily broken products like fried snail crisps, use a low rotation speed (100–300r/min) to prevent product damage while ensuring basic deoiling effect.

  • Sturdy Materials: For dense materials like kelp and pickles, use a high rotation speed (400–600r/min) to improve dehydration efficiency and shorten processing time.


Equipment Balance Check

Before each operation, check whether the machine is placed on a flat ground and whether the counterweight is in good condition. Regularly inspect the connection parts of the frame to ensure there is no looseness, which is crucial for stable high-speed rotation.


Usage and Maintenance Methods for Spin Dryer

Proper usage and maintenance can extend the service life of the machine, ensure food safety, and reduce operational failures.


Cleaning and Disinfection

  • Daily Cleaning: After operation, disconnect the power supply, take out the inner bucket, and rinse it with clean water to remove residual materials. Wipe the inner wall of the outer bucket and discharge the collected liquid in time.

  • Weekly Deep Cleaning: Disassemble the inner bucket and lifting components, soak them in food-grade disinfectant for 30 minutes, then rinse and dry thoroughly. Wipe the motor and control panel to prevent dust accumulation.

  • Note: Do not use corrosive cleaning agents to clean 304 stainless steel parts to avoid rust and scratches.


Daily Maintenance

  • Motor Inspection: Monthly check the operation status of the dehydration motor and lifting motor, and listen for abnormal noises. Ensure the motor is well-ventilated to prevent overheating.

  • Lubrication of Moving Parts: Apply food-grade lubricating oil to the lifting system and bucket rotation shaft every month to reduce friction and wear.

  • Replacement of Wear Parts: Regularly check the sealing ring of the bucket cover and the inner bucket wall. Replace worn parts in a timely manner to prevent liquid leakage and ensure processing effect.

  • Proper Storage: When the machine is not in use for a long time, cover it with a dust cover, keep the surrounding environment dry and ventilated, and avoid moisture and rust.


  • Regular cleaning helps you:

    • Maintain food safety

    • Extend your machine’s life

    • Keep energy costs low

    • Avoid expensive repairs

Chanda Machine Co.,Ltd. says you should always follow the cleaning steps from the manufacturer. Their team can help you learn how to take care of your bread cream filling machine for the best results.



FAQ


Q1: How long does it take to complete a single dehydration/deoiling cycle?

A: The processing time of a single cycle is usually 3–10 minutes, depending on the type of material and the required dehydration/deoiling degree. Fried snacks need shorter deoiling time, while pickled vegetables need longer dehydration time.


Q2: Can the spin dryer handle materials with large particles or hard textures?

A: Yes, it can handle large-particle materials such as peanuts and potato chips, but it is necessary to ensure that the particle size does not exceed 10mm and the materials are evenly loaded to avoid damaging the inner bucket.


Q3: What is the maximum loading capacity of the spin dryer?

A: The loading capacity depends on the density of the materials. For light materials such as potato chips, the maximum loading capacity is about 30kg per batch; for heavy materials such as kelp, it can reach 50kg per batch (specifically based on the actual situation of the equipment).


Q4: Does the machine need professional installation and debugging?

A: The machine is delivered with a complete installation manual. It can be installed by the user according to the manual, and the manufacturer can provide online debugging guidance if needed. The commissioning process only takes 20–30 minutes to complete.


Q5: Is the spin dryer compliant with food safety standards?

A: Yes, the inner and outer buckets of the machine are made of 304 stainless steel that meets food-grade standards, which is corrosion-resistant and easy to clean, fully complying with food processing hygiene requirements.


CONTACT US

 NO. 903, Juzhengxiandaicheng, Joint Center 
of Guijiang Road and Baiyunshan Road, Luohe, 
Henan, China
 sales@hnchanda.com
 +86-395-3386258
 +86-18939535088

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